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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Linux: How to use energy better in general by fine-tuning laptop battery? (lemmy.org)

submitted 4 hours ago* (last edited 4 hours ago) by Floopquist@lemmy.org to c/linux@lemmy.ml

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Hello,

I just found out about TLP - a module to download with apt, which is a good utility for maintaining the laptop battery. You can set a minimum charge value, and a maximum charge value. But it is not sufficient for my use case. My question is - is there any utility I can use to discharge the battery WHILE connected to AC?

The reason behind this is: I want to use the solar power during the day to charge up the battery to 80 or 90% and then discharge the battery in the evening to 15-20%. Afterwards use AC power again. The solar energy during mid-day is cheaper and available in abundance.

On a big level with many computers this could make a good impact on the energy network, or am I wrong?

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[–] Intheflsun@lemmy.world 1 points 1 hour ago* (last edited 1 hour ago) (1 children)

I've got a 2021 Dell laptop. In uefi, you can set charge times and type of charge, 50%,80%, full, and smart. I think it's in like 1/2 hour blocks by day. By that I mean on (day of week) from 9:30am to 6:00pm charge full, different day may have different settings. .

[–] nanook@friendica.eskimo.com 1 points 1 hour ago

@Intheflsun @Floopquist What I meant is that I do not think you can have it discharge the battery when AC is present without altering the PD chips firmware.

[–] mlfh@lemmy.sdf.org 4 points 3 hours ago

Some laptop battery firmware allows you to force discharge even when connected to AC, and if your laptop can use the tlp recalibrate or tlp discharge commands then yours is supported.

I use this to power my thinkpad servers off of their own batteries during a power outage, to reduce load on my UPS. Great feature.

[–] LumpyPancakes@lemm.ee 5 points 4 hours ago

Sounds like a smart socket might do what you need, externally, with some coding.

[–] nanook@friendica.eskimo.com 1 points 4 hours ago

@Floopquist I don't think that you can do that without altering the firmware on the PD chip.